Classes/class-upgrade.php

   1 <?php
   2
   3 class Upgrade
   4 {
   5     public $web_dir;
   6     private $temp_dir;
   7     private static $temp_extracted_dir;
   8     public static $upgrade_available;
   9     public static $last_check;
  10     public $error;
  11     public static $latest_version;
  12     function __construct()
  13     {
  14         global $config;
  15         read_config_db();
  16         if (!get_config('upgrade'))
  17         {
  18             $config['upgrade'] =[];
  19             write_config('upgrade');
  20         }
  21
  22         $tok = split(__DIR__, '/');
  23         unset($tok[count($tok) - 1]);
  24         $this->web_dir = implode('/',$tok).'/';
  25
  26         /** prepare the temp directory */
  27         $temp_dir = $this->web_dir."panel_upgrade";
  28         $temp_dir .= ($temp_dir[strlen($temp_dir) - 1] != '/') ? "/" : "";
  29         if (file_exists($temp_dir)) {
  30             deleteDirectoryContents($temp_dir);
  31             rmdir($temp_dir);
  32         }
  33         $mkdir = mkdir($temp_dir, 0755, true);
  34
  35         $this->temp_dir = $mkdir ? $temp_dir : NULL;
  36         $this->error = $mkdir ? NULL : "Could not create directory: $temp_dir";
  37         Upgrade::$upgrade_available = false;
  38         if ($this->error)
  39             error_log($this->error);
  40     }
  41
  42     /** Checks for a new upgrade */
  43     function checkForNew()
  44     {
  45         global $config;
  46         read_config_db();
  47         $last_check = &$config['upgrade']['last_check'];
  48         if (isset($last_check) && time() - $last_check < 300) // only check every 15 mins
  49         {
  50             error_log("Skipping upgrade check, checked ".time() - $last_check." seconds ago");
  51             return false;
  52         }
  53         error_log(time()." - ".$last_check." = ".time()-$last_check);
  54         $apiUrl = "https://api.github.com/repos/unrealircd/unrealircd-webpanel/releases";
  55         $response = file_get_contents($apiUrl, false, stream_context_create(
  56                 ["http" => ["method" => "GET", "header" => "User-agent: UnrealIRCd Webpanel"]]
  57             ));
  58
  59         if ($response === false)
  60         {
  61             $this->error = "Couldn't check github.";
  62             return false;
  63         }
  64         $data = json_decode($response, true);
  65         $latest = $data[count($data) - 1];
  66         $config['upgrade']['latest_version'] = $latest['tag_name'];
  67         $last_check = time();
  68         $config['upgrade']['download_link'] = $latest['zipball_url'];
  69         write_config('upgrade');
  70         Upgrade::$upgrade_available = (float)$latest['tag_name'] > WEBPANEL_VERSION ? true : false;
  71     }
  72
  73     function downloadUpgradeZip()
  74     {
  75         $ch = curl_init(get_config('upgrade::download_link'));
  76         $fp = fopen($this->temp_dir."unrealircd-webpanel-upgrade.zip", 'w+');
  77
  78         curl_setopt($ch, CURLOPT_FILE, $fp);
  79         curl_setopt($ch, CURLOPT_TIMEOUT, 60);
  80         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
  81         curl_setopt($ch, CURLOPT_HTTPHEADER, [
  82             'User-Agent: UnrealIRCd Webpanel',
  83         ]);
  84         $success = curl_exec($ch);
  85         $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  86
  87         if ($code == "403" || $code == "404")
  88         {
  89             $this->error ="Unable to download";
  90         }
  91         curl_close($ch);
  92         fclose($fp);
  93
  94         return $success;
  95     }
  96     function extractZip() {
  97         $zip = new ZipArchive;
  98         if ($zip->open($this->temp_dir."unrealircd-webpanel-upgrade.zip") === true)
  99         {
 100             $zip->extractTo("$this->temp_dir");
 101             $zip->close();
 102             unlink($this->temp_dir."unrealircd-webpanel-upgrade.zip");
 103             self::$temp_extracted_dir = findOnlyDirectory($this->temp_dir);
 104             error_log(self::$temp_extracted_dir);
 105             return true;
 106         } else {
 107             return false;
 108         }
 109     }
 110     function cleanupOldFiles()
 111     {
 112         foreach ($this->compareAndGetFilesToDelete() as $file)
 113             unlink($file);
 114     }
 115     function compareAndGetFilesToDelete() : array
 116     {
 117         $currentFiles = $this->listFiles($this->web_dir);
 118         $updateFiles = $this->listFiles(self::$temp_extracted_dir);
 119         $filesToDelete = array_diff($currentFiles, $updateFiles);
 120         $filesToActuallyDelete = [];
 121         error_log("Comparing... Files to delete:");
 122         foreach ($filesToDelete as $file)
 123         {
 124             // skip the relevant directories
 125             if (str_starts_with($file, "panel_upgrade/")
 126              || str_starts_with($file, "vendor/")
 127              || str_starts_with($file, "config/")
 128              || str_starts_with($file, "data/")
 129              || str_starts_with($file, "plugins/"))
 130                 continue;
 131             $filesToActuallyDelete[] = $file;
 132         }
 133         return $filesToActuallyDelete;
 134     }
 135
 136     function extractToWebdir()
 137     {
 138         $zip = new ZipArchive;
 139         if ($zip->open($this->temp_dir."unrealircd-webpanel-upgrade.zip") === true)
 140         {
 141             $extracted = $zip->extractTo(str_replace("//","/",get_config('base_url')));
 142             $zip->close();
 143             if (!$extracted)
 144             {
 145                 error_log("Cannot extract to web directory. Permission denied.");
 146                 return false;
 147             }
 148             return true;
 149         } else {
 150             return false;
 151         }
 152     }
 153
 154     /**
 155      * Cleans up the extracted update files
 156      * @return void
 157      */
 158     function cleanupDownloadFiles()
 159     {
 160         $ex_dir = self::$temp_extracted_dir ?? findOnlyDirectory($this->temp_dir);
 161         deleteDirectoryContents($ex_dir);
 162         rmdir($ex_dir);
 163     }
 164
 165     function listFiles($dir) {
 166         $files = [];
 167         $iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));
 168         foreach ($iterator as $file)
 169         {
 170             if ($file->isFile())
 171             {
 172                 $f = substr($file->getPathname(), strlen($dir));
 173                 if ($f[0] == "/") $f = substr($f,1);
 174                 error_log("$dir => $f");
 175
 176
 177
 178
 179                 $files[] = $f;
 180             }
 181         }
 182         return $files;
 183     }
 184 }
 185
 186
 187 function findOnlyDirectory($topDir) {
 188     // Ensure the directory exists and is indeed a directory
 189     if (!is_dir($topDir)) {
 190         die("The specified path is not a directory.");
 191     }
 192
 193     // Open the directory
 194     $dirHandle = opendir($topDir);
 195     if ($dirHandle === false) {
 196         die("Unable to open directory.");
 197     }
 198
 199     $directories = [];
 200
 201     // Read through the directory contents
 202     while (($entry = readdir($dirHandle)) !== false) {
 203         $fullPath = $topDir . DIRECTORY_SEPARATOR . $entry;
 204         // Check if the entry is a directory and not . or ..
 205         if (is_dir($fullPath) && $entry !== '.' && $entry !== '..') {
 206             $directories[] = $fullPath;
 207         }
 208     }
 209
 210     // Close the directory handle
 211     closedir($dirHandle);
 212
 213     // Check if there is exactly one directory
 214     if (count($directories) === 1) {
 215         return $directories[0];
 216     } elseif (count($directories) === 0) {
 217         return "No directories found after extracting. Possibly missing php-zip extention. Aborting upgrade.";
 218     } else {
 219         return "Multiple directories found. Previous cleanup was unsuccessful for some reason, maybe a permissions error? Aborting upgrade.";
 220     }
 221 }
 222
 223
 224 function deleteDirectoryContents($dir) {
 225     error_log("Deleting directory contents at $dir");
 226     if (!is_dir($dir)) {
 227         echo "The provided path is not a directory.";
 228         return false;
 229     }
 230
 231     // Open the directory
 232     $handle = opendir($dir);
 233     if ($handle === false) {
 234         echo "Failed to open the directory.";
 235         return false;
 236     }
 237
 238     // Loop through the directory contents
 239     while (($item = readdir($handle)) !== false) {
 240         // Skip the special entries "." and ".."
 241         if ($item == "." || $item == "..") {
 242             continue;
 243         }
 244
 245         $itemPath = $dir."/".$item;
 246
 247         // If the item is a directory, recursively delete its contents
 248         if (is_dir($itemPath)) {
 249             deleteDirectoryContents($itemPath);
 250             // Remove the empty directory
 251             rmdir($itemPath);
 252         } else {
 253             // If the item is a file, delete it
 254             unlink($itemPath);
 255         }
 256     }
 257
 258     // Close the directory handle
 259     closedir($handle);
 260
 261     return true;
 262 }